EP1556659A1 - Echangeur de chaleur a regulation de flux, en particulier pour vehicules automobiles - Google Patents
Echangeur de chaleur a regulation de flux, en particulier pour vehicules automobilesInfo
- Publication number
- EP1556659A1 EP1556659A1 EP03767853A EP03767853A EP1556659A1 EP 1556659 A1 EP1556659 A1 EP 1556659A1 EP 03767853 A EP03767853 A EP 03767853A EP 03767853 A EP03767853 A EP 03767853A EP 1556659 A1 EP1556659 A1 EP 1556659A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- heat exchanger
- valve
- outlet
- compartment
- manifold
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F27/00—Control arrangements or safety devices specially adapted for heat-exchange or heat-transfer apparatus
- F28F27/02—Control arrangements or safety devices specially adapted for heat-exchange or heat-transfer apparatus for controlling the distribution of heat-exchange media between different channels
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
- F02B29/00—Engines characterised by provision for charging or scavenging not provided for in groups F02B25/00, F02B27/00 or F02B33/00 - F02B39/00; Details thereof
- F02B29/04—Cooling of air intake supply
- F02B29/0406—Layout of the intake air cooling or coolant circuit
- F02B29/0418—Layout of the intake air cooling or coolant circuit the intake air cooler having a bypass or multiple flow paths within the heat exchanger to vary the effective heat transfer surface
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
- F02B29/00—Engines characterised by provision for charging or scavenging not provided for in groups F02B25/00, F02B27/00 or F02B33/00 - F02B39/00; Details thereof
- F02B29/04—Cooling of air intake supply
- F02B29/045—Constructional details of the heat exchangers, e.g. pipes, plates, ribs, insulation, materials, or manufacturing and assembly
- F02B29/0462—Liquid cooled heat exchangers
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
- F02B29/00—Engines characterised by provision for charging or scavenging not provided for in groups F02B25/00, F02B27/00 or F02B33/00 - F02B39/00; Details thereof
- F02B29/04—Cooling of air intake supply
- F02B29/045—Constructional details of the heat exchangers, e.g. pipes, plates, ribs, insulation, materials, or manufacturing and assembly
- F02B29/0475—Constructional details of the heat exchangers, e.g. pipes, plates, ribs, insulation, materials, or manufacturing and assembly the intake air cooler being combined with another device, e.g. heater, valve, compressor, filter or EGR cooler, or being assembled on a special engine location
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
- F28D1/00—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators
- F28D1/02—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid
- F28D1/04—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid with tubular conduits
- F28D1/053—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid with tubular conduits the conduits being straight
- F28D1/0535—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid with tubular conduits the conduits being straight the conduits having a non-circular cross-section
- F28D1/05366—Assemblies of conduits connected to common headers, e.g. core type radiators
- F28D1/05391—Assemblies of conduits connected to common headers, e.g. core type radiators with multiple rows of conduits or with multi-channel conduits combined with a particular flow pattern, e.g. multi-row multi-stage radiators
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01P—COOLING OF MACHINES OR ENGINES IN GENERAL; COOLING OF INTERNAL-COMBUSTION ENGINES
- F01P7/00—Controlling of coolant flow
- F01P7/14—Controlling of coolant flow the coolant being liquid
- F01P7/16—Controlling of coolant flow the coolant being liquid by thermostatic control
- F01P2007/168—By varying the cooling capacity of a liquid-to-air heat-exchanger
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
- F28D21/00—Heat-exchange apparatus not covered by any of the groups F28D1/00 - F28D20/00
- F28D2021/0019—Other heat exchangers for particular applications; Heat exchange systems not otherwise provided for
- F28D2021/008—Other heat exchangers for particular applications; Heat exchange systems not otherwise provided for for vehicles
- F28D2021/0082—Charged air coolers
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/10—Internal combustion engine [ICE] based vehicles
- Y02T10/12—Improving ICE efficiencies
Definitions
- the invention relates to the field of heat exchangers, in particular for motor vehicles.
- a heat exchanger of the type comprising at least one manifold divided by a fixed partition into an inlet compartment and an outlet compartment, a heat exchange body composed of two layers which communicate with each other and open out respectively in the inlet compartment and in the outlet compartment, as well as an inlet pipe and an outlet pipe which open into the manifold for the circulation of a fluid.
- the fluid enters the inlet compartment, passes successively through the two heat exchange plies to reach the outlet compartment, which it then leaves via the outlet pipe.
- the circulation of the fluid takes place in two passes, according to a U-shaped circuit, also called a methodical circulation circuit.
- the heat exchange body is composed of two layers, the term "layer" being taken here in a general sense to designate a part of the heat exchange body.
- the two layers are most often formed respectively by two rows of tubes which are associated with heat exchange fins. They can be either flat fins through which the tubes pass, or else corrugated fins, also called corrugated spacers, which are placed between the tubes.
- the two sheets can also be formed by other means, for example by stacked plates, etc.
- Heat exchangers of the aforementioned type can be used, for example, to constitute a charge air cooler intended to cool a flow of pressurized air which is used to power a heat engine of a motor vehicle.
- the air flow which has been compressed and therefore heated by the engine's turbocharger, must be cooled before being sent to the engine's intake chamber.
- This air flow is conventionally cooled by heat exchange with an external air flow by forming an air / air type exchanger.
- Such heat exchangers are designed to be permanently traversed by the fluid to be treated, for example an air flow to be cooled.
- the object of the invention is in particular to overcome the aforementioned drawbacks.
- the invention also aims to provide such a heat exchanger which makes it possible to pass the fluid through the exchanger or else to divert it from the exchanger.
- the invention provides for this purpose a heat exchanger of the type defined in the introduction, in which the manifold houses a valve having a movable member displaceable between a bypass position, in which the fluid is able to circulate from the inlet pipe towards the outlet pipe without crossing the heat exchange plies, and a normal position, in which the fluid is able to circulate from the inlet pipe to the outlet pipe by passing through the heat exchange sheets.
- the manifold directly houses a valve which makes it possible to control the circulation of the fluid and to operate the heat exchanger either in a bypass position or in a normal position.
- the inlet pipe opens into the inlet compartment.
- the movable member of the valve cooperates with the manifold to prevent, in the bypass position, the circulation of the fluid in the outlet compartment. This shortens the flow of fluid between the inlet manifold and the outlet manifold.
- the outlet pipe opens directly into the inlet compartment, while the movable member of the valve is arranged to cooperate with a passage opening arranged in the partition, in line with a tubing chosen from the inlet tubing and the outlet tubing.
- the movable member of the valve advantageously comprises a valve movable in translation.
- this valve closes the passage opening and allows the fluid to access the inlet compartment through the inlet manifold and to leave the inlet compartment through the outlet manifold.
- the valve opens the passage opening and allows the fluid to access the inlet compartment, to traverse the two heat exchange plies to gain the outlet compartment and to leave this outlet compartment by the outlet tubing.
- the valve thus makes it possible to control the fluid which passes through the heat exchange, without providing for a complex circuit external to the heat exchanger.
- the movable member of the valve further comprises a tubular element integral in translation with the valve. In the bypass position, this tubular element retracts into the chosen tubing. In the normal position, this tubular element extends transversely in the inlet compartment to establish direct communication between the outlet compartment and the chosen tubing.
- valve and the tubular element are advantageously linked together by an axial rod, delimiting an annular passage between them.
- the heat exchanger of the invention advantageously comprises motor means arranged to move the movable member of the valve in translation and bring it either in the bypass position, or in the normal position, or in a intermediate position between the bypass position and the normal position. Such an intermediate position makes it possible to provide temperature regulation.
- the motor means comprise an electric motor driving a threaded axis cooperating with a threaded element integral with the movable member of the valve.
- the drive means comprise a vacuum capsule integral with the movable member of the valve.
- the drive means comprise a thermostatic wax capsule secured to the movable member of the valve.
- the tubing chosen, with which the movable member of the valve cooperates, is advantageously the outlet tubing.
- the device could also work with the inlet tubing.
- the two heat exchange plies are formed respectively by two rows of tubes which communicate with each other by another manifold.
- the heat exchanger of the invention is advantageously produced in the form of a charge air cooler which is arranged to be traversed by an air flow intended for the charge of a heat engine.
- Figure 1 is a front view of a heat exchanger according to the invention.
- - Figure 2 is a side view of the heat exchanger of Figure 1 with a partial section along line II -II of Figure 1;
- - Figure 3 is an axial sectional view of the movable member of the valve forming part of the heat exchanger of Figures 1 and 2;
- FIG. 4 is a sectional view of the manifold of the heat exchanger of Figures 1 and 2 showing the valve in the bypass position;
- Figure 5 is a view similar to Figure 4 showing the valve in the normal position
- FIG. 6 is a schematic cross-sectional view along line VI -VI of Figure 1, the valve being in the bypass position;
- Figure 7 is a sectional view similar to Figure 6 showing the valve in the normal position.
- FIGS. 1 and 2 show a heat exchanger 10 which constitutes, in this example, a charge air cooler.
- a heat exchanger 10 which constitutes, in this example, a charge air cooler.
- Such a cooler is intended to cool a flow of compressed and hot air coming from a turbocharger and intended to supply a heat engine of a motor vehicle.
- the heat exchanger 10 comprises a manifold 12, here in the upper part, connected to another manifold 14, here in the lower part, by a body 16 of heat exchange.
- the manifold 12 is generally elongated and is divided, over its entire length, by a fixed partition 18 (Figure 2) into an inlet compartment 20 and an outlet compartment 22.
- a fixed partition 18 Figure 2
- On a side face 24 of the box manifold 12 are provided two pipes: an inlet pipe 26 and an outlet pipe 28 for a fluid, here for the charge air.
- the tubing 26 opens into the inlet compartment 20 to allow the fluid to penetrate in the inlet compartment 20, as shown by the arrow Fl in FIG. 1.
- the outlet pipe 28 opens directly into the inlet compartment 20, and not into the outlet compartment 22 as in a usual heat exchanger .
- the manifold houses a valve 30 which makes it possible to communicate the outlet pipe 28 either with the inlet compartment 20, or with the outlet compartment 22, or with the two compartments to both and with an adjustable proportion.
- the body 16 of the heat exchanger is composed of two layers, the term layer being taken in the general sense to designate two parts of the body 16 capable of being traversed successively by the fluid to be treated.
- a first ply 32 connects the inlet compartment 20 to the manifold 14 which constitutes a fluid return box, while a second ply 34 connects the outlet compartment 22 to the same manifold 14 ( Figure 2).
- the sheet 32 is formed of a series of parallel tubes 36 having an elongated elliptical section, as can be seen in FIGS. 6 and 7.
- the sheet 34 is composed of another row of 38 analog tubes.
- the tubes 36 and 38 jointly pass through a series of fins 40 increasing the heat exchange surface.
- the fluid (here the air) reaches the inlet compartment 20 through the inlet pipe 26 (arrow Fl), then gains the manifold 14 passing through the tubes 36 of the sheet 32, then the outlet compartment 22 passing through the tubes 38 of the sheet 34 (arrows F2 in FIG. 5).
- the fluid then leaves the outlet compartment 22 by special arrangements of the valve 30 to exit through the outlet pipe 28, as shown by the arrow F3 on Figures 2 and 5.
- the fluid adopts a U-shaped circulation, as shown by the arrows F2 in Figures 2 and 5.
- the fluid which passes through the heat exchanger (here the charge air) is cooled by heat exchange with an air flow which scans the body of the exchanger, as shown by arrow F4 in Figure 2.
- FIG. 3 shows the movable member of the valve
- Figures 4 and 5 show two different valve positions.
- the outlet tube 28 is a circular cylindrical tube of axis XX which is attached perpendicularly to the face 24.
- a passage opening 42 is arranged at right, that is to say in the axis of the tubing 28. This opening 42 is circular and centered on the axis XX.
- the valve 30 comprises a movable member 44 (shown alone in FIG. 3) displaceable in translation in the direction of the axis XX, in one direction or the other, under the action of a motor 46, in the example an electric motor.
- This motor 46 is mounted in a sealed manner in an opening 45 arranged in one face 47 of the manifold 12 which delimits the outlet compartment 22.
- the movable member 44 comprises a valve 48 of circular shape which, in the position of FIG. 4, is capable of sealingly closing the passage opening 42 to completely isolate the inlet compartment 20 and the outlet compartment 22
- the movable member 44 also comprises a tubular element 50 which is arranged to be able to slide inside the outlet tube 28, as can be seen in FIG. 3.
- This tubular element is attached to the valve 48 by an axial rod 52.
- the connection between the rod and the tubular element takes place, for example, by radial arms delimiting an annular opening 54 for the passage of the fluid, as will be seen below.
- the tubular element 50 extends over an axial length sufficient to allow, in the position of FIG. 5, to seal the passage opening 42 (therefore the outlet compartment 22) and the outlet pipe 28. For this, watertight seals, which will be described later, seal the connections.
- the movement in translation of the movable member 44 by the motor 46 is effected by a threaded pin 56 rotated by the motor 46 in one direction or the other, as shown by arrow F5, and cooperating with an element tapped 58, here formed in the axial rod 52.
- the movable member 44 can be brought either to the position of Figure 4, or to the position of Figure 5, or to any other position intermediate.
- the valve 48 retracts, at least in part, into the manifold. Furthermore, the tubular element 50 establishes a direct connection between the outlet compartment 22 and the outlet pipe 28.
- the fluid which reaches the inlet compartment 20 via the inlet pipe 26 flows through the sheet 32 to reach the manifold 14, then flows through the sheet 34 to reach the outlet compartment 22 (arrows F2). It leaves this outlet compartment 22 through the tubular element 50 and the outlet pipe 28 (arrow F3).
- the movable member 40 in intermediate positions between those shown in FIGS. 4 and 5. These intermediate positions allow temperature regulation by adjusting the flow rate of the fluid passing through the heat exchanger.
- FIG. 6 which corresponds to the operating mode of FIG. 4, it can be seen that the fluid which accesses the inlet compartment 20 leaves it immediately through the tubular element 50 and the outlet tubing 28.
- the movable member of the valve could be associated not with the outlet pipe 28, but with the inlet pipe 26.
- an electric motor 46 in particular of the stepping type, other driving means are possible.
- the motor is replaced by a vacuum capsule which directly drives the movable member 44.
- the drive means may comprise a thermostatic wax capsule. This capsule can either be connected to the movable member 44, or integrated therein.
- the heat exchange body does not necessarily consist of heat exchange tubes associated with fins or corrugated spacers. It is also possible to use other heat exchange means, for example stacked plates.
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
- Air-Conditioning For Vehicles (AREA)
- Cooling, Air Intake And Gas Exhaust, And Fuel Tank Arrangements In Propulsion Units (AREA)
Description
Claims
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR0213455A FR2846407B1 (fr) | 2002-10-28 | 2002-10-28 | Echangeur de chaleur a regulation de flux, en particulier pour vehicules automobiles |
FR0213455 | 2002-10-28 | ||
PCT/FR2003/003189 WO2004040226A1 (fr) | 2002-10-28 | 2003-10-27 | Echangeur de chaleur a regulation de flux, en particulier pour vehicules automobiles |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1556659A1 true EP1556659A1 (fr) | 2005-07-27 |
EP1556659B1 EP1556659B1 (fr) | 2007-12-05 |
Family
ID=32088329
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP03767853A Expired - Lifetime EP1556659B1 (fr) | 2002-10-28 | 2003-10-27 | Echangeur de chaleur a regulation de flux, en particulier pour vehicules automobiles |
Country Status (6)
Country | Link |
---|---|
EP (1) | EP1556659B1 (fr) |
AT (1) | ATE380326T1 (fr) |
AU (1) | AU2003292287A1 (fr) |
DE (1) | DE60317921T2 (fr) |
FR (1) | FR2846407B1 (fr) |
WO (1) | WO2004040226A1 (fr) |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2880387B1 (fr) * | 2005-01-03 | 2011-07-15 | Peugeot Citroen Automobiles Sa | Dispositif de recuperation et d'elimination de l'huile entrainee dans le circuit de refroidissement d'un turbocompresseur pour vehicule automobile |
DE102006044155A1 (de) * | 2006-09-15 | 2008-03-27 | Behr Gmbh & Co. Kg | Thermostat-Wärmetauscher-Anordnung, insbesondere für einen Wärmetauscher eines Kraftfahrzeugs |
GB0622555D0 (en) * | 2006-11-14 | 2006-12-20 | Delphi Tech Inc | Bypass assembly for a charge-air cooler |
FR3034510B1 (fr) * | 2015-04-02 | 2018-04-27 | Valeo Systemes Thermiques | Echangeur de chaleur pour une boucle de climatisation pour vehicule automobile |
FR3099566A1 (fr) * | 2019-07-29 | 2021-02-05 | Valeo Systemes Thermiques | Echangeur de chaleur pour véhicule destiné à être utilisé comme évaporateur et/ou comme radiateur |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR1063749A (fr) * | 1952-09-29 | 1954-05-05 | Spanner Boilers | Perfectionnements aux chauffe-eau à gaz chaud et appareils similaires |
DE3440489A1 (de) * | 1984-11-06 | 1986-05-07 | Süddeutsche Kühlerfabrik Julius Fr. Behr GmbH & Co KG, 7000 Stuttgart | Kuehler, insbesondere fuer die kuehlanlage eines verbrennungsmotors eines kraftfahrzeuges |
EP0197823A1 (fr) * | 1985-03-20 | 1986-10-15 | Valeo | Echangeur de chaleur pour véhicule automobile en particulier du type à gaz d'échappement |
JPS61237998A (ja) * | 1985-04-15 | 1986-10-23 | Toyo Radiator Kk | 過給気バイパス装置を組込んだ過給器用放熱器 |
FR2673241A1 (fr) * | 1991-02-26 | 1992-08-28 | Valeo Thermique Moteur Sa | Radiateur de vehicule automobile muni d'un dispositif de commande de circulation de fluide. |
FR2676401A1 (fr) * | 1991-05-14 | 1992-11-20 | Chausson Ingenierie | Procede pour le refroidissement du moteur et la climatisation de vehicules et dispositif pour sa mise en óoeuvre. |
DE19626639C1 (de) * | 1996-07-02 | 1997-11-20 | Laengerer & Reich Gmbh & Co | Wärmetauscher, insbesondere Wasserkühler |
-
2002
- 2002-10-28 FR FR0213455A patent/FR2846407B1/fr not_active Expired - Fee Related
-
2003
- 2003-10-27 DE DE60317921T patent/DE60317921T2/de not_active Expired - Lifetime
- 2003-10-27 AU AU2003292287A patent/AU2003292287A1/en not_active Abandoned
- 2003-10-27 AT AT03767853T patent/ATE380326T1/de not_active IP Right Cessation
- 2003-10-27 EP EP03767853A patent/EP1556659B1/fr not_active Expired - Lifetime
- 2003-10-27 WO PCT/FR2003/003189 patent/WO2004040226A1/fr active IP Right Grant
Non-Patent Citations (1)
Title |
---|
See references of WO2004040226A1 * |
Also Published As
Publication number | Publication date |
---|---|
DE60317921D1 (de) | 2008-01-17 |
EP1556659B1 (fr) | 2007-12-05 |
ATE380326T1 (de) | 2007-12-15 |
DE60317921T2 (de) | 2008-11-27 |
FR2846407B1 (fr) | 2006-01-06 |
AU2003292287A1 (en) | 2004-05-25 |
WO2004040226A1 (fr) | 2004-05-13 |
FR2846407A1 (fr) | 2004-04-30 |
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Inventor name: MAIRE, ARNAUD Inventor name: CARRASCO MARTINS, CARLOS |
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